1 #define __SP_SELECT_CONTEXT_C__
3 /*
4 * Selection and transformation context
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 1999-2005 authors
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #ifdef HAVE_CONFIG_H
16 # include "config.h"
17 #endif
18 #include <gdk/gdkkeysyms.h>
19 #include "macros.h"
20 #include "rubberband.h"
21 #include "document.h"
22 #include "selection.h"
23 #include "seltrans-handles.h"
24 #include "sp-cursor.h"
25 //#include "pixmaps/cursor-select-m.xpm" // These aren't used
26 //#include "pixmaps/cursor-select-d.xpm"
27 #include "pixmaps/handles.xpm"
28 #include <glibmm/i18n.h>
30 #include "select-context.h"
31 #include "selection-chemistry.h"
32 #include "desktop.h"
33 #include "desktop-handles.h"
34 #include "sp-root.h"
35 #include "prefs-utils.h"
36 #include "tools-switch.h"
37 #include "message-stack.h"
38 #include "selection-describer.h"
39 #include "seltrans.h"
41 static void sp_select_context_class_init(SPSelectContextClass *klass);
42 static void sp_select_context_init(SPSelectContext *select_context);
43 static void sp_select_context_dispose(GObject *object);
45 static void sp_select_context_setup(SPEventContext *ec);
46 static void sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
47 static gint sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event);
48 static gint sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
50 static SPEventContextClass *parent_class;
52 static GdkCursor *CursorSelectMouseover = NULL;
53 static GdkCursor *CursorSelectDragging = NULL;
54 GdkPixbuf *handles[13];
56 static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect
57 static gint drag_escaped = 0; // if non-zero, drag was canceled by esc
59 static gint xp = 0, yp = 0; // where drag started
60 static gint tolerance = 0;
61 static bool within_tolerance = false;
63 GtkType
64 sp_select_context_get_type(void)
65 {
66 static GType type = 0;
67 if (!type) {
68 GTypeInfo info = {
69 sizeof(SPSelectContextClass),
70 NULL, NULL,
71 (GClassInitFunc) sp_select_context_class_init,
72 NULL, NULL,
73 sizeof(SPSelectContext),
74 4,
75 (GInstanceInitFunc) sp_select_context_init,
76 NULL, /* value_table */
77 };
78 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSelectContext", &info, (GTypeFlags)0);
79 }
80 return type;
81 }
83 static void
84 sp_select_context_class_init(SPSelectContextClass *klass)
85 {
86 GObjectClass *object_class = (GObjectClass *) klass;
87 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
89 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
91 object_class->dispose = sp_select_context_dispose;
93 event_context_class->setup = sp_select_context_setup;
94 event_context_class->set = sp_select_context_set;
95 event_context_class->root_handler = sp_select_context_root_handler;
96 event_context_class->item_handler = sp_select_context_item_handler;
98 // cursors in select context
99 // CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);
100 // CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);
101 // selection handles
102 handles[0] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_nw_xpm);
103 handles[1] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_ne_xpm);
104 handles[2] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_h_xpm);
105 handles[3] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_v_xpm);
106 handles[4] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_nw_xpm);
107 handles[5] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_n_xpm);
108 handles[6] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_ne_xpm);
109 handles[7] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_e_xpm);
110 handles[8] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_se_xpm);
111 handles[9] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_s_xpm);
112 handles[10] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_sw_xpm);
113 handles[11] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_w_xpm);
114 handles[12] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_center_xpm);
116 }
118 static void
119 sp_select_context_init(SPSelectContext *sc)
120 {
121 sc->dragging = FALSE;
122 sc->moved = FALSE;
123 sc->button_press_shift = false;
124 sc->button_press_ctrl = false;
125 sc->button_press_alt = false;
126 sc->_seltrans = NULL;
127 sc->_describer = NULL;
128 }
130 static void
131 sp_select_context_dispose(GObject *object)
132 {
133 SPSelectContext *sc = SP_SELECT_CONTEXT(object);
134 SPEventContext * ec = SP_EVENT_CONTEXT (object);
136 ec->enableGrDrag(false);
138 if (sc->grabbed) {
139 sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);
140 sc->grabbed = NULL;
141 }
143 delete sc->_seltrans;
144 sc->_seltrans = NULL;
145 delete sc->_describer;
146 sc->_describer = NULL;
148 if (CursorSelectDragging) {
149 gdk_cursor_unref (CursorSelectDragging);
150 CursorSelectDragging = NULL;
151 }
152 if (CursorSelectMouseover) {
153 gdk_cursor_unref (CursorSelectMouseover);
154 CursorSelectMouseover = NULL;
155 }
157 G_OBJECT_CLASS(parent_class)->dispose(object);
158 }
160 static void
161 sp_select_context_setup(SPEventContext *ec)
162 {
163 SPSelectContext *select_context = SP_SELECT_CONTEXT(ec);
165 if (((SPEventContextClass *) parent_class)->setup) {
166 ((SPEventContextClass *) parent_class)->setup(ec);
167 }
169 SPDesktop *desktop = ec->desktop;
171 select_context->_describer = new Inkscape::SelectionDescriber(desktop->selection, desktop->messageStack());
173 select_context->_seltrans = new Inkscape::SelTrans(desktop);
175 sp_event_context_read(ec, "show");
176 sp_event_context_read(ec, "transform");
178 if (prefs_get_int_attribute("tools.select", "gradientdrag", 0) != 0) {
179 ec->enableGrDrag();
180 }
181 }
183 static void
184 sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
185 {
186 SPSelectContext *sc = SP_SELECT_CONTEXT(ec);
188 if (!strcmp(key, "show")) {
189 if (val && !strcmp(val, "outline")) {
190 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
191 } else {
192 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
193 }
194 }
195 }
197 static bool
198 sp_select_context_abort(SPEventContext *event_context)
199 {
200 SPDesktop *desktop = event_context->desktop;
201 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
202 Inkscape::SelTrans *seltrans = sc->_seltrans;
204 if (sc->dragging) {
205 if (sc->moved) { // cancel dragging an object
206 seltrans->ungrab();
207 sc->moved = FALSE;
208 sc->dragging = FALSE;
209 drag_escaped = 1;
211 if (sc->item) {
212 // only undo if the item is still valid
213 if (SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))) {
214 sp_document_undo(sp_desktop_document(desktop));
215 }
217 sp_object_unref( SP_OBJECT(sc->item), NULL);
218 } else if (sc->button_press_ctrl) {
219 // NOTE: This is a workaround to a bug.
220 // When the ctrl key is held, sc->item is not defined
221 // so in this case (only), we skip the object doc check
222 sp_document_undo(sp_desktop_document(desktop));
223 }
224 sc->item = NULL;
226 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
227 return true;
228 }
229 } else {
230 NR::Maybe<NR::Rect> const b = Inkscape::Rubberband::get()->getRectangle();
231 if (b != NR::Nothing()) {
232 Inkscape::Rubberband::get()->stop();
233 rb_escaped = 1;
234 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
235 return true;
236 }
237 }
238 return false;
239 }
241 bool
242 key_is_a_modifier (guint key) {
243 return (key == GDK_Alt_L ||
244 key == GDK_Alt_R ||
245 key == GDK_Control_L ||
246 key == GDK_Control_R ||
247 key == GDK_Shift_L ||
248 key == GDK_Shift_R ||
249 key == GDK_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)
250 key == GDK_Meta_R);
251 }
253 void
254 sp_select_context_up_one_layer(SPDesktop *desktop)
255 {
256 /* Click in empty place, go up one level -- but don't leave a layer to root.
257 *
258 * (Rationale: we don't usually allow users to go to the root, since that
259 * detracts from the layer metaphor: objects at the root level can in front
260 * of or behind layers. Whereas it's fine to go to the root if editing
261 * a document that has no layers (e.g. a non-Inkscape document).)
262 *
263 * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
264 * document), we might consider further restricting the below to disallow
265 * leaving a layer to go to a non-layer.
266 */
267 SPObject *const current_layer = desktop->currentLayer();
268 if (current_layer) {
269 SPObject *const parent = SP_OBJECT_PARENT(current_layer);
270 if ( parent
271 && ( SP_OBJECT_PARENT(parent)
272 || !( SP_IS_GROUP(current_layer)
273 && ( SPGroup::LAYER
274 == SP_GROUP(current_layer)->layerMode() ) ) ) )
275 {
276 desktop->setCurrentLayer(parent);
277 if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())
278 sp_desktop_selection(desktop)->set(current_layer);
279 }
280 }
281 }
283 static gint
284 sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
285 {
286 gint ret = FALSE;
288 SPDesktop *desktop = event_context->desktop;
289 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
290 Inkscape::SelTrans *seltrans = sc->_seltrans;
292 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
294 // make sure we still have valid objects to move around
295 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
296 sp_select_context_abort(event_context);
297 }
299 switch (event->type) {
300 case GDK_BUTTON_PRESS:
301 if (event->button.button == 1) {
302 /* Left mousebutton */
304 // save drag origin
305 xp = (gint) event->button.x;
306 yp = (gint) event->button.y;
307 within_tolerance = true;
309 // remember what modifiers were on before button press
310 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
311 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
312 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
314 if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) {
315 // if shift or ctrl was pressed, do not move objects;
316 // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
317 } else {
318 sc->dragging = TRUE;
319 sc->moved = FALSE;
321 // remember the clicked item in sc->item:
322 sc->item = sp_event_context_find_item (desktop,
323 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
324 sp_object_ref(sc->item, NULL);
326 rb_escaped = drag_escaped = 0;
328 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
329 GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
330 GDK_POINTER_MOTION_MASK,
331 NULL, event->button.time);
332 sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);
334 ret = TRUE;
335 }
336 } else if (event->button.button == 3) {
337 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
338 sp_select_context_abort(event_context);
339 }
340 break;
342 case GDK_ENTER_NOTIFY:
343 {
344 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
345 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
346 gdk_cursor_destroy(cursor);
347 break;
348 }
350 case GDK_LEAVE_NOTIFY:
351 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
352 break;
354 case GDK_KEY_PRESS:
355 if (get_group0_keyval (&event->key) == GDK_space) {
356 if (sc->dragging && sc->grabbed) {
357 /* stamping mode: show content mode moving */
358 seltrans->stamp();
359 ret = TRUE;
360 }
361 }
362 break;
364 default:
365 break;
366 }
368 if (!ret) {
369 if (((SPEventContextClass *) parent_class)->item_handler)
370 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
371 }
373 return ret;
374 }
376 static gint
377 sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
378 {
379 SPItem *item = NULL;
380 SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
381 gint ret = FALSE;
383 SPDesktop *desktop = event_context->desktop;
384 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
385 Inkscape::SelTrans *seltrans = sc->_seltrans;
386 Inkscape::Selection *selection = sp_desktop_selection(desktop);
387 gdouble const nudge = prefs_get_double_attribute_limited("options.nudgedistance", "value", 2, 0, 1000); // in px
388 gdouble const offset = prefs_get_double_attribute_limited("options.defaultscale", "value", 2, 0, 1000);
389 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
390 int const snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
392 // make sure we still have valid objects to move around
393 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
394 sp_select_context_abort(event_context);
395 }
397 switch (event->type) {
398 case GDK_2BUTTON_PRESS:
399 if (event->button.button == 1) {
400 if (!selection->isEmpty()) {
401 SPItem *clicked_item = (SPItem *) selection->itemList()->data;
402 if (SP_IS_GROUP (clicked_item)) { // enter group
403 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
404 sp_desktop_selection(desktop)->clear();
405 sc->dragging = false;
406 } else { // switch tool
407 tools_switch_by_item (desktop, clicked_item);
408 }
409 } else {
410 sp_select_context_up_one_layer(desktop);
411 }
412 ret = TRUE;
413 }
414 break;
415 case GDK_BUTTON_PRESS:
416 if (event->button.button == 1) {
418 // save drag origin
419 xp = (gint) event->button.x;
420 yp = (gint) event->button.y;
421 within_tolerance = true;
423 NR::Point const button_pt(event->button.x, event->button.y);
424 NR::Point const p(desktop->w2d(button_pt));
425 Inkscape::Rubberband::get()->start(desktop, p);
426 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
427 GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK,
428 NULL, event->button.time);
429 sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
431 // remember what modifiers were on before button press
432 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
433 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
434 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
436 sc->moved = FALSE;
438 rb_escaped = drag_escaped = 0;
440 ret = TRUE;
441 } else if (event->button.button == 3) {
442 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
443 sp_select_context_abort(event_context);
444 }
445 break;
447 case GDK_MOTION_NOTIFY:
448 if (event->motion.state & GDK_BUTTON1_MASK) {
449 NR::Point const motion_pt(event->motion.x, event->motion.y);
450 NR::Point const p(desktop->w2d(motion_pt));
452 if ( within_tolerance
453 && ( abs( (gint) event->motion.x - xp ) < tolerance )
454 && ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
455 break; // do not drag if we're within tolerance from origin
456 }
457 // Once the user has moved farther than tolerance from the original location
458 // (indicating they intend to move the object, not click), then always process the
459 // motion notify coordinates as given (no snapping back to origin)
460 within_tolerance = false;
462 if (sc->button_press_ctrl || sc->button_press_alt) // if ctrl or alt was pressed and it's not click, we want to drag rather than rubberband
463 sc->dragging = TRUE;
465 if (sc->dragging) {
466 /* User has dragged fast, so we get events on root (lauris)*/
467 // not only that; we will end up here when ctrl-dragging as well
468 // and also when we started within tolerance, but trespassed tolerance outside of item
469 Inkscape::Rubberband::get()->stop();
470 item_at_point = desktop->item_at_point(NR::Point(event->button.x, event->button.y), FALSE);
471 if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
472 item_at_point = desktop->item_at_point(NR::Point(xp, yp), FALSE);
473 if (item_at_point || sc->moved || sc->button_press_alt) {
474 // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
475 if (!sc->moved) {
476 item_in_group = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
477 group_at_point = desktop->group_at_point(NR::Point(event->button.x, event->button.y));
478 // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
479 if ((!item_in_group || !selection->includes(item_in_group)) &&
480 (!group_at_point || !selection->includes(group_at_point))
481 && !sc->button_press_alt) {
482 // select what is under cursor
483 if (!seltrans->isEmpty()) {
484 seltrans->resetState();
485 }
486 // when simply ctrl-dragging, we don't want to go into groups
487 if (item_at_point && !selection->includes(item_at_point))
488 selection->set(item_at_point);
489 } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
490 seltrans->grab(p, -1, -1, FALSE);
491 sc->moved = TRUE;
492 }
493 if (!seltrans->isEmpty())
494 seltrans->moveTo(p, event->button.state);
495 if (desktop->scroll_to_point(&p))
496 // unfortunately in complex drawings, gobbling results in losing grab of the object, for some mysterious reason
497 ; //gobble_motion_events(GDK_BUTTON1_MASK);
498 ret = TRUE;
499 } else {
500 sc->dragging = FALSE;
501 }
502 } else {
503 Inkscape::Rubberband::get()->move(p);
504 gobble_motion_events(GDK_BUTTON1_MASK);
505 }
506 }
507 break;
508 case GDK_BUTTON_RELEASE:
509 xp = yp = 0;
510 if ((event->button.button == 1) && (sc->grabbed)) {
511 if (sc->dragging) {
512 if (sc->moved) {
513 // item has been moved
514 seltrans->ungrab();
515 sc->moved = FALSE;
516 } else if (sc->item && !drag_escaped) {
517 // item has not been moved -> simply a click, do selecting
518 if (!selection->isEmpty()) {
519 if (event->button.state & GDK_SHIFT_MASK) {
520 // with shift, toggle selection
521 seltrans->resetState();
522 selection->toggle(sc->item);
523 } else {
524 // without shift, increase state (i.e. toggle scale/rotation handles)
525 if (selection->includes(sc->item)) {
526 seltrans->increaseState();
527 } else {
528 seltrans->resetState();
529 selection->set(sc->item);
530 }
531 }
532 } else { // simple or shift click, no previous selection
533 seltrans->resetState();
534 selection->set(sc->item);
535 }
536 }
537 sc->dragging = FALSE;
538 if (sc->item) {
539 sp_object_unref( SP_OBJECT(sc->item), NULL);
540 }
541 sc->item = NULL;
542 } else {
543 NR::Maybe<NR::Rect> const b = Inkscape::Rubberband::get()->getRectangle();
544 if (b != NR::Nothing() && !within_tolerance) {
545 // this was a rubberband drag
546 Inkscape::Rubberband::get()->stop();
547 seltrans->resetState();
548 // find out affected items:
549 GSList *items = sp_document_items_in_box(sp_desktop_document(desktop), desktop->dkey, b.assume());
550 if (event->button.state & GDK_SHIFT_MASK) {
551 // with shift, add to selection
552 selection->addList (items);
553 } else {
554 // without shift, simply select anew
555 selection->setList (items);
556 }
557 g_slist_free (items);
558 } else { // it was just a click, or a too small rubberband
559 Inkscape::Rubberband::get()->stop();
560 if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
561 // this was a shift-click, select what was clicked upon
563 sc->button_press_shift = false;
565 if (sc->button_press_ctrl) {
566 // go into groups, honoring Alt
567 item = sp_event_context_find_item (desktop,
568 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
569 sc->button_press_ctrl = FALSE;
570 } else {
571 // don't go into groups, honoring Alt
572 item = sp_event_context_find_item (desktop,
573 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
574 }
576 if (item) {
577 selection->toggle(item);
578 item = NULL;
579 }
581 } else if (sc->button_press_ctrl && !rb_escaped && !drag_escaped) { // ctrl-click
583 sc->button_press_ctrl = FALSE;
585 item = sp_event_context_find_item (desktop,
586 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
588 if (item) {
589 if (selection->includes(item)) {
590 seltrans->increaseState();
591 } else {
592 seltrans->resetState();
593 selection->set(item);
594 }
595 item = NULL;
596 }
598 } else { // click without shift, simply deselect, unless with Alt or something was cancelled
599 if (!selection->isEmpty()) {
600 if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
601 selection->clear();
602 rb_escaped = 0;
603 ret = TRUE;
604 }
605 }
606 }
607 ret = TRUE;
608 }
609 if (sc->grabbed) {
610 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
611 sc->grabbed = NULL;
612 }
614 desktop->updateNow();
615 }
616 sc->button_press_shift = false;
617 sc->button_press_ctrl = false;
618 sc->button_press_alt = false;
619 break;
621 case GDK_KEY_PRESS: // keybindings for select context
623 if (!key_is_a_modifier (get_group0_keyval (&event->key))) {
624 event_context->defaultMessageContext()->clear();
625 } else {
626 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
627 _("<b>Ctrl</b>: select in groups, move hor/vert"),
628 _("<b>Shift</b>: toggle select, force rubberband, disable snapping"),
629 _("<b>Alt</b>: select under, move selected"));
630 break;
631 }
633 switch (get_group0_keyval (&event->key)) {
634 case GDK_Left: // move selection left
635 case GDK_KP_Left:
636 case GDK_KP_4:
637 if (!MOD__CTRL) { // not ctrl
638 if (MOD__ALT) { // alt
639 if (MOD__SHIFT) sp_selection_move_screen(-10, 0); // shift
640 else sp_selection_move_screen(-1, 0); // no shift
641 }
642 else { // no alt
643 if (MOD__SHIFT) sp_selection_move(-10*nudge, 0); // shift
644 else sp_selection_move(-nudge, 0); // no shift
645 }
646 ret = TRUE;
647 }
648 break;
649 case GDK_Up: // move selection up
650 case GDK_KP_Up:
651 case GDK_KP_8:
652 if (!MOD__CTRL) { // not ctrl
653 if (MOD__ALT) { // alt
654 if (MOD__SHIFT) sp_selection_move_screen(0, 10); // shift
655 else sp_selection_move_screen(0, 1); // no shift
656 }
657 else { // no alt
658 if (MOD__SHIFT) sp_selection_move(0, 10*nudge); // shift
659 else sp_selection_move(0, nudge); // no shift
660 }
661 ret = TRUE;
662 }
663 break;
664 case GDK_Right: // move selection right
665 case GDK_KP_Right:
666 case GDK_KP_6:
667 if (!MOD__CTRL) { // not ctrl
668 if (MOD__ALT) { // alt
669 if (MOD__SHIFT) sp_selection_move_screen(10, 0); // shift
670 else sp_selection_move_screen(1, 0); // no shift
671 }
672 else { // no alt
673 if (MOD__SHIFT) sp_selection_move(10*nudge, 0); // shift
674 else sp_selection_move(nudge, 0); // no shift
675 }
676 ret = TRUE;
677 }
678 break;
679 case GDK_Down: // move selection down
680 case GDK_KP_Down:
681 case GDK_KP_2:
682 if (!MOD__CTRL) { // not ctrl
683 if (MOD__ALT) { // alt
684 if (MOD__SHIFT) sp_selection_move_screen(0, -10); // shift
685 else sp_selection_move_screen(0, -1); // no shift
686 }
687 else { // no alt
688 if (MOD__SHIFT) sp_selection_move(0, -10*nudge); // shift
689 else sp_selection_move(0, -nudge); // no shift
690 }
691 ret = TRUE;
692 }
693 break;
694 case GDK_Escape:
695 if (!sp_select_context_abort(event_context))
696 selection->clear();
697 ret = TRUE;
698 break;
699 case GDK_a:
700 case GDK_A:
701 if (MOD__CTRL_ONLY) {
702 sp_edit_select_all();
703 ret = TRUE;
704 }
705 break;
706 case GDK_Tab: // Tab - cycle selection forward
707 if (!(MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT))) {
708 sp_selection_item_next();
709 ret = TRUE;
710 }
711 break;
712 case GDK_ISO_Left_Tab: // Shift Tab - cycle selection backward
713 if (!(MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT))) {
714 sp_selection_item_prev();
715 ret = TRUE;
716 }
717 break;
718 case GDK_space:
719 /* stamping mode: show outline mode moving */
720 /* FIXME: Is next condition ok? (lauris) */
721 if (sc->dragging && sc->grabbed) {
722 seltrans->stamp();
723 ret = TRUE;
724 }
725 break;
726 case GDK_x:
727 case GDK_X:
728 if (MOD__ALT_ONLY) {
729 desktop->setToolboxFocusTo ("altx");
730 ret = TRUE;
731 }
732 break;
733 case GDK_bracketleft:
734 if (MOD__ALT) {
735 sp_selection_rotate_screen(selection, 1);
736 } else if (MOD__CTRL) {
737 sp_selection_rotate(selection, 90);
738 } else if (snaps) {
739 sp_selection_rotate(selection, 180/snaps);
740 }
741 ret = TRUE;
742 break;
743 case GDK_bracketright:
744 if (MOD__ALT) {
745 sp_selection_rotate_screen(selection, -1);
746 } else if (MOD__CTRL) {
747 sp_selection_rotate(selection, -90);
748 } else if (snaps) {
749 sp_selection_rotate(selection, -180/snaps);
750 }
751 ret = TRUE;
752 break;
753 case GDK_less:
754 case GDK_comma:
755 if (MOD__ALT) {
756 sp_selection_scale_screen(selection, -2);
757 } else if (MOD__CTRL) {
758 sp_selection_scale_times(selection, 0.5);
759 } else {
760 sp_selection_scale(selection, -offset);
761 }
762 ret = TRUE;
763 break;
764 case GDK_greater:
765 case GDK_period:
766 if (MOD__ALT) {
767 sp_selection_scale_screen(selection, 2);
768 } else if (MOD__CTRL) {
769 sp_selection_scale_times(selection, 2);
770 } else {
771 sp_selection_scale(selection, offset);
772 }
773 ret = TRUE;
774 break;
775 case GDK_Return:
776 if (MOD__CTRL_ONLY) {
777 if (selection->singleItem()) {
778 SPItem *clicked_item = selection->singleItem();
779 if (SP_IS_GROUP (clicked_item)) { // enter group
780 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
781 sp_desktop_selection(desktop)->clear();
782 } else {
783 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
784 }
785 }
786 ret = TRUE;
787 }
788 break;
789 case GDK_BackSpace:
790 if (MOD__CTRL_ONLY) {
791 sp_select_context_up_one_layer(desktop);
792 ret = TRUE;
793 }
794 break;
795 default:
796 break;
797 }
798 break;
799 case GDK_KEY_RELEASE:
800 if (key_is_a_modifier (get_group0_keyval (&event->key)))
801 event_context->defaultMessageContext()->clear();
802 break;
803 default:
804 break;
805 }
807 if (!ret) {
808 if (((SPEventContextClass *) parent_class)->root_handler)
809 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
810 }
812 return ret;
813 }
816 /*
817 Local Variables:
818 mode:c++
819 c-file-style:"stroustrup"
820 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
821 indent-tabs-mode:nil
822 fill-column:99
823 End:
824 */
825 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :